Use a phone flashcard app built from your own notes
Upload your PDFs, slides, notes or photos and get flashcards you can review in your phone browser, scheduled with spaced repetition.
Why a phone flashcard app works for short study sessions
Most flashcard review happens in short gaps, like a bus ride or the five minutes before class, which is when a phone flashcard app earns its place. DeckOwl turns your own reading into cards you can review in your phone browser, so you are not typing every question by hand.
- Upload PDFs, DOCX, PPTX, plain text or photos of pages
- Cards scheduled with spaced repetition
- Free plan: 3 generations per month, study in the browser
- Plus adds unlimited generations and PDF, DOCX, Anki and CSV export
Spaced repetition
Cards return at the intervals your memory needs, so review time goes to the cards you are about to forget.
Built from your files
Upload PDFs, DOCX, PPTX, plain notes or photos of pages and get flashcards generated from them.
Study in the browser
Open your cards in the browser with no install needed. The free plan includes 3 generations per month.
How it works
Upload your material
Add a PDF, slide deck, set of notes or a photo of a page.
Review the cards
Answer from memory first, then check the back of each card.
Let the schedule adjust
Cards you miss come back sooner, and the ones you know spread further apart.
Good cards ask one thing at a time. Put the term on the front and the definition or reason on the back, and avoid cards that hold three facts at once, because those are hard to grade honestly.
If you want to keep studying in another tool, Plus adds exports to Anki, CSV, PDF and DOCX.
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Frequently asked questions
How many flashcards should I make for a biology unit?
Most students do well with 20 to 40 cards per chapter, each covering one fact. Review the hardest cards more often than the easy ones.
Does spaced repetition work better than rereading notes?
Spaced repetition schedules each review just before you would forget the card, which usually improves long-term recall compared with rereading. It works best when you answer from memory before checking the back.
Can I study my flashcards on my phone for free?
Yes, the free plan includes 3 generations per month and lets you study in the browser. Exporting to PDF, DOCX, Anki or CSV requires Plus.
Do I need a credit card to start?
No, you can start on the free plan without a credit card. Students can get 40% off Plus with a school email.
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